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Karl Multi Room Studio Cabin

From £15,165

Available To Order

FREE DELIVERY in England & Wales (Contact us for Scotland)
Delivery Date: Approx 8-10 weeks from order. Want it quicker? View our in-stock cabins
2 Year Warranty. Your new timber building is made to the highest standards
8.0m x 6.24m, Height: Over 2.5m, Wall Thickness: 50mm

Spacious Multi-Room Garden Studio with Covered Outdoor Living

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Pay just £500 deposit to secure – Call Us

Available on back-order

BUILDING OPTIONS

This modular building kit contains all necessary timber panels, doors, windows and fixings as standard. To complete your new building, you will require a suitable base for installation, roof covering, and paint or varnish to weatherproof your natural timber building. Please choose from the options below.

Our roof shingles come in two different styles. Choose from a contemporary rectangular shingle, or a traditional hexagonal shape. Both styles are available in three different colours to perfectly complement your chosen paint finish.

We offer a range of garden building bases to suit all locations and ground conditions. For reasonably level surfaces, we recommend our environmentally friendly interlocking grid base. These are lightweight, free draining and the strongest on the market - available for DIY installation or fitted by us, and suitable for every building that we sell. For sloping or uneven surfaces, our metal ground screws are ideal - including a bespoke timber frame and all fitted by our professional team. Ground screw bases are not available for all buildings and not suitable for DIY installation. Find Out More

Enjoy your timber building all year round with our proven insulation systems, trusted since 2011. We insulate log buildings in the floor and roof using high-performance insulation panels to create an effective warm roof system that helps retain heat in winter and reduce overheating in summer.

For curved roof buildings and saunas, we can also insulate the walls using flexible insulation designed to follow the shape of the structure.

Our insulation kits include everything needed for installation, including insulation boards, vapour control membranes, battens, OSB, and specialist fixings — helping improve comfort, reduce heating costs, and make your cabin more usable in every season. The options shown below are suitable for this building:

Keep your cabin protected from water damage with our guttering systems, designed to direct rain flow away from the base of your new garden building. Add an optional water butt to conserve water ready to nurture your garden in the dry summer months.

Our expert fitting team can install any building available on our website across mainland UK. With years of experience, you can be sure that our teams will provide you with the best possible service, installing your building to the highest levels of quality and leaving you with more time to enjoy your purchase. Our hassle-free installation service covers everything you have chosen above. FIND OUT MORE ON OUR INSTALLATION TAB BELOW

Installation Location

Paint

Your cabin will require 22.5 litres of exterior treatment and 25 litres of interior treatment to protect the building in line with the manufacturer's warranty. After you have configured your cabin, please visit our Paint & Protection page to choose from our wide selection of paints and varnishes.

Base Price£15,165
Install Cost£0
Options Total£0
Total£15,165
Base Price£15,165
Install Cost£0
Options Total£0
Total£15,165
Brand: Inmedias
Categories: All Buildings, Classroom and Educational Cabins, Commercial Saunas, Community Spaces, Dens and Garden Bars, Garden Offices, Garden Rooms and Retreats, Hair and Beauty Treatment Rooms, Log Cabins, Modern Garden Room, Multi-Room Buildings, Multi-Use Spaces, Outdoor Entertainment, Pent Roof Models, Popular Residential Cabins, Residential Buildings, Studio Spaces

Description

The Karl Multi Room Studio Cabin is a highly versatile, premium timber garden building designed for customers who need multiple usable rooms within one stylish structure. With its generous footprint (approx. 7.8m x 3.6m overall) and clever internal layout, the Karl offers the perfect balance of indoor living space and outdoor covered area.

Featuring a modern apex roof design, large glazed doors, and a practical room configuration, this model is ideal for both residential and business use, making it one of the most flexible garden studios in the UK market.


Key Features

Multi Room Layout for Maximum Flexibility

The Karl is designed to provide clearly defined internal spaces, allowing you to separate work, relaxation, and storage.

  • Dedicated main living or working space
  • Additional rooms for office, storage, or utility use
  • Separate access points for practical zoning
  • Ideal for customers searching for a large garden room with multiple rooms

Integrated Covered Terrace Area

One of the standout features of the Karl is its covered outdoor seating area, perfect for extending your living space outside.

  • Ideal for entertaining, dining, or relaxing
  • Provides shelter in all weather conditions
  • Enhances the lifestyle and usability of the building

Karl Apex Multi Room Studio From Cabins Unlimited Internal Layout


Premium Timber Construction

Built using high-quality interlocking logs, this wooden garden building delivers durability, insulation, and a natural aesthetic.

  • Strong, robust construction designed for UK climates
  • Sustainable timber material
  • Suitable for upgrade to an insulated garden room for year-round use

Bright and Contemporary Design

Large windows and glazed double doors create an open, light-filled environment.

  • Maximises natural light
  • Creates a modern garden studio feel
  • Strong connection to your outdoor space

Popular Uses

The Karl Multi Room Studio is ideal for customers searching for:

Garden Room & Home Office

  • Multi-room garden office building
  • Work-from-home solution with separate meeting or storage rooms
  • Professional workspace away from the house

Annex & Additional Living Space

  • Garden annex building (subject to permissions)
  • Guest accommodation or independent living space
  • Multi-functional family room

Leisure & Lifestyle

  • Garden bar with separate storage or prep room
  • Gym with changing/storage area
  • Hobby studio or creative workshop

Business & Commercial Use

  • Beauty salon, therapy room, or treatment studio
  • Small business workspace with reception and working areas
  • Airbnb or holiday let potential

Ideal Customer Segments

The Karl is particularly suited to:

  • Homeowners looking for a large, flexible garden building
  • Remote workers needing a dedicated multi-room office
  • Small business owners operating from home
  • Property investors creating additional income spaces
  • Lifestyle buyers wanting a premium multi-functional garden room

Visit Our Display Sites

We highly recommend visiting one of our display sites to experience the Karl and similar buildings in person.

At our display locations, you can:

  • Walk through multi-room layouts
  • See the build quality and finish up close
  • Compare sizes, designs, and specifications
  • Get expert advice tailored to your project

Seeing a building in real life helps you fully appreciate the space, quality, and versatility of our garden studios.


Expert Installation by Our In-House Team

We offer a professional installation service carried out by our own experienced team, not subcontractors.

  • Skilled installers with specialist product knowledge
  • Efficient and precise on-site assembly
  • Consistent, high-quality finish
  • Full support from delivery through to completion

Choosing our installation service ensures your timber garden studio is built correctly, quickly, and to the highest standards.


Why Choose the Karl Multi Room Studio?

  • Large multi-room garden building with flexible layout
  • Stylish apex roof design with covered outdoor area
  • Ideal for home office, annex, or business use
  • High-quality timber construction
  • View at our display sites before you buy
  • Professionally installed by our own expert team

Enquire Today

The Karl Multi Room Studio Cabin is the perfect solution for customers looking for a large, flexible garden room with multiple uses.

Contact us today to discuss your requirements, arrange a visit to a display site, or get a personalised quote.

Additional information

Building Type

, ,

Base Width Range (m)

Base Depth Range (m)

Above 5.0m

Base Size Depth (m)

Base Size Width (m)

Roof Style

Ridge Height

Model Footprint

Floor Thickness

Wall Thickness

Door Type

Double Glazing

Fast delivery

Delivery (Weeks)

Manufacturers Warranty (Years)

Product Size

Large Models, Very Large Models

Our Installation Service

Our expert fitting team can install any building available on our website across the UK. With years of experience you’ll be sure that our teams will provide you with the best possible service on the market. We calculate all of our installation prices based on your exact requirements, so please get in touch by either requesting a quote or giving us a call on 01366 610850.

Don’t worry if you’ve already purchased your timber building, we can install that too! Be sure to fill out the form below with the building manufacturer and model number and our team will be able to provide a quote.

Get a quote

To get a quote on the installation of your timber building simply fill in the form. A member of our team will then contact you with a quote for the elements you require.

❓Below are many of the Frequently asked questions we get about our range of Pent Sloping Roof Interlocking Log Cabins & Summerhouses.  Use the down arrows to the right to reveal the answers

A pent roof cabin offers a sleek, modern look with a lower profile that’s ideal near boundaries. Its single‑slope roof provides efficient rainwater runoff and allows for EPDM rubber roofing, which is long‑lasting, low‑maintenance, and leak‑free — making it a practical and contemporary choice.

EPDM rubber roofing is highly durable, long‑lasting, and weather‑resistant. It has no joins, which means it won’t leak, and it provides a clean, modern finish ideal for pent roof designs.

EPDM roofing can last 40–50 years with minimal maintenance, significantly longer than felt shingles. Cedar shingles offer a natural look but require more upkeep, while EPDM is virtually maintenance‑free.

Pent roof cabins are specifically designed for EPDM roofing, which we strongly recommend. Alternative roofing materials are not generally advised due to performance and design considerations.

Yes, pent roof cabins are a popular choice for garden offices and studios. Their modern design, efficient roofing, and insulation options make them ideal for year‑round use. They also give the internal appearance of larger space compared with a similar footprint Apex model.

Absolutely. Pent roofs are built with a slight slope to ensure effective rainwater runoff, preventing pooling and protecting the structure. Linked with our guttering options a Pent model only requires guttering at the back of the building.

Pent roof cabins are designed with a single slope roof, which naturally directs rainwater to one side. Adding guttering is optional but recommended if you want to:

  • Protect the base and walls by channelling water away from the structure.
  • Reduce dirt splashback and tidelines caused by rain hitting the ground near the cabin.
  • Harvest rainwater for garden use, as guttering makes collection simple.

Because the roof falls in one direction, guttering is only required along that single edge.

Yes, insulation is available for floors and roofs as standard upgrades. We can also provide thicker insulation or wall insulation if required.

Yes, wall insulation and additional interior cladding can be added as our best and highest upgrade.  Whilst this will significantly increase the cost of the building it will provide additional warmth. The downside to internal wall insulation is you lose the look of a timber building unless you opt for timber cladding.

Pent roof cabins are often chosen for their sleek, contemporary look. They complement modern gardens and urban spaces, whereas apex and hipped roofs offer a more traditional aesthetic.

Pent roofs provide a lower external profile, which can be useful near boundaries, while still offering generous internal headroom.

Yes, the lower height of pent roof cabins often makes them more suitable for boundary placement, helping to comply with planning regulations.

Our cabins are available in a variety of log thicknesses to suit different needs. Thicker logs provide greater strength, insulation, and durability, while thinner logs are ideal for budget‑friendly summerhouses. The thickness of the logs is shown in the individual product specifications, but we have models that have 28mm, 40mm, 44mm 68mm and 70mm interlocking logs.  If you need thicker logs, please contact us as we can product buildings using a bespoke service.

You can select from full‑length windows, ¾ height windows, or ½ height windows depending on the model. Each style offers a different balance of light, privacy, and aesthetics.

Most of our cabins are supplied with premium sealed double glazing for excellent insulation and energy efficiency. Budget models may come with single glazing, which is clearly listed under the specifications tab.

Standard options include single solid doors, single half‑glazed doors, double doors, wooden bifold doors, and sliding doors. On selected models, you can upgrade to UPVC doors and windows for enhanced security and low maintenance.

Optional Insulation is available on most pent, apex, and hipped models unless otherwise stated. We also offer upgrades to thicker insulation or wall insulation if you require year‑round comfort.

As everyone has difference budgets and requirements, we have asked customers how they prefer to see the breakdown of the prices and we feel this is the most transparent way.  Customers can select the individual components to build their own package which is priced individually so you know what you are getting.  Nothing hidden.

All cabins come with a manufacturer’s warranty covering structural integrity and materials. Full details are provided with each product.

In most cases, summerhouses fall under permitted development rights and do not require planning permission. However, this depends on size, height, and placement, as well as your location, so we recommend checking with your local authority.

Delivery times vary depending on the model and your location. Installation can typically be completed within a few days once the base is prepared. If you need a building urgently then please contact us and we may be able to recommend a model available for immediate shipment.

Yes, many models allow customization. Speak to our team about adding extra doors, windows, or other upgrades.

We recommend treating the timber with a high‑quality timber treatment and we recommend Sadolin for its quality, ease of application and longevity. Regular re-application of timber treatment and checks on roofing and glazing will help maintain performance.

Many customers choose to assemble their cabins themselves using the provided instructions. We also offer professional installation services with our own employed installation team if you prefer a hassle‑free experience. Many customers prefer us to install their building especially as they may not have the technical ability, experience or tools required.  Our teams are very experienced and offer a very high quality of service backed with years of many exceptional reviews. If you are using a third-party fitter, then take care to ensure they have the correct experience.  As our fitters are all directly employed by Cabins Unlimited, we are best placed to install your building. Check if your cabins supplier has their own team as many outsource with negative consequences should something go wrong. Not something you will experience with Cabins Unlimited!

A solid and perfectly level base is essential for any interlocking summerhouse or log cabin. We recommend our Eco-Base Plastic Grid System called Probase owing to it allowing water to drain away from the base of the building but other alternatives including concrete pads, paving slabs, or a timber frame foundation to ensure stability and longevity.

All doors and windows are fitted with quality locks. UPVC upgrades provide additional security and peace of mind.

Yes, with insulation upgrades and a suitable heating source, your cabin can be enjoyed comfortably throughout the year.  Please talk to us about our range of air conditioning options that are perfect and cost-effective ways of heating and cooling your building throughout the year.

We offer flexible payment options on many models. Please check the product page or contact our team for details.

Karl Apex Multi Room Studio From Cabins Unlimited Installation Guide (1 MB)

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Why Buy From Us

We’re Experts in our Field

We have over 25 years’ experience in providing exceptional timber buildings – meaning you get expert advice and quality workmanship from one of the best names in the business.

Price Match Promise

We keep our prices competitive, with great package deals all year round. If you find the same in stock building cheaper from a UK supplier, we’ll match their price. Simple.

Excellent Customer Service

We’re rated as EXCELLENT on Trustpilot, with an average review score of 4.9/5 from verified customers.

Local Display Sites

With three display sites across Norfolk, you can see the quality of our buildings before you buy.

Professional Installation Service

We don’t just supply timber buildings, we install them for you too – using our own, directly employed professional installation team.

Comprehensive Warranties

Our timber buildings are constructed to the highest standards, backed by manufacturer warranties for your peace of mind.

Free Delivery

Our timber building prices include FREE delivery to England and Wales, with other delivery locations available on request.

Responsibly Sourced Timber

We work exclusively with manufacturers who are FSC certified – ensuring that the timber in our buildings comes from responsibly managed forests.

Family Run Business

Cabins Unlimited is an independent, family-run business, where we treat every customer like one of our own.